7 Best Bathroom Window Fans (Curated list)


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If you do not have the space to vent a ceiling fan and you do not wish to cut a hole into your bathroom wall to accommodate a wall-insert model, then bathroom window fans are a convenient option. These are easy to install, and they can provide just as much power and be just as quiet as other options. In order to find the best window fan options for a variety of uses, I have researched the specs of a wide variety of options.

Please note that all products linked in this post have not been physically tested by the HVAC-Buzz team. They have been included and recommended based on detailed research into their design and capabilities.

1. Best All Round: Hugoome Reversible Exhaust Shutter Fan

The Hugoome 2 speed exhaust fan wins best all-around due to its blend of affordability, versatility, size, and low noise production.

Exhaust Shutter Fan 176 CFM, 2 Direction Reversible Strong Airflow Wall Mounted Vent Fans, Ventilation Blower for Bathroom Attic Window Basement (6 inch / 110V)

Pros

This fan is 11.6” by 11.6” by 5.1”, meaning that it should fit into windows under a foot wide, making it effective for use in most bathrooms.

The fan is versatile in that it allows the user to switch between two directions of airflow using a simple pull cord. The reversible airflow makes for improved circulation and higher air quality.

The Hugoome Reversible Exhaust Shutter Fan is easy to install by fitting it into any window, but it is best if installed with a wood frame to allow the pull cord on-off switch to hang out easily.

Cons

One of the main cons for this fan is that it runs at 40 decibels, which is equal to approximately 2.3 sones. As you can get fans capable of operating with a sound rating of 0.3 sones, the Hugoome Reversible is not very quiet in comparison.

Exhaust Shutter Fan 300 CFM, 2 Direction Reversible Strong Airflow Wall Mounted Vent Fans, Ventilation Blower for Bathroom Attic Window Basement (8 inch / 110V)
  • 【Window Fan with Reversible Function】-This square fan is a two-way linkage window exhaust fan, window fans with exhaust and intake can promote air circulation,take the muddy air away and maintain...
  • 【Wall Fan with Large Airflow】-Exhaust 500m³/h(300 CFM), air intake 380m³/h. You can install it on your wall as a whole house fan which can help eliminate humidity, tobacco smoke, and cooking...
  • 【Durable and Safe】-The ventilation fan adopts permanent lubrication wear-resistant sleeve bearing motor, and high-quality anti-rust copper material, built-in overheating protection device, has the...
  • 【Perfect for Greenhouse Ventilation】-Temperature and humidity control is the key to the success of the greenhouse. This ventilation fan can help air in and out, so that the greenhouse can maintain...

2. Best for Small Windows: Hugoome Small Square Exhaust Fan Series

The Hugoome small square exhaust fan series is ideal for small rooms. This series is designed to be slim enough to fit in the smallest bathroom window. This series features one 4″ fan and two 6″ versions.

The 4″ fan (pictured below) has 6.2” by 6.2” by 3.4” dimensions, while the 6″ has 7.9” by 7.9” by 3.4”. Both of these sizes will fit in most small windows.

These fans are quieter than other options at approximately 1.6 sones, and they have a standard, white plastic fan appearance.

Exhaust Fan 188 CFM, 18W 320m³/h Ventilation Extractor with Anti-backflow Check Valve Chain Switch, Window and Wall Mount Vent Fans for Kitchen Bathroom Greenhouse Garage (6 inch / 110V)

Pros

Installation is as simple as fitting the fan into the window opening during the summer or in warm areas where the window can be left open. Otherwise, many users choose to create a plywood casing for the fan by drilling a 4″ or 6″ hole in the plywood, fitting the fan into the hole, and fitting the board into the window.

Small space fans do not need to have high airflow (you can calculate the CFM needed for your room by using this calculator), however, these fans are still capable of achieving sufficient exhaust rates.  

The 4″ option of this fan has 76 CFM, which is appropriate for a room less than 70 sq. ft with an 8 ft ceiling. The 6″ version has 188 CFM, making it appropriate for slightly larger rooms up to 176 sq. ft with an 8 ft ceiling.

The 6″ version of this fan comes with (amazon link) or without (amazon link) a rope pull switch to turn the fan on and off.

Cons

The four-inch version of this fan does not come with any on/off switch. It turns on when plugged in, so some users choose to hardwire it to an on/off switch or to put it on an automatic timer.

Although 1.6 sones is comparatively quiet, it is still going to be noticeable. This can bother some users.

Exhaust Fan 188 CFM, 18W 320m³/h Ventilation Extractor with Anti-backflow Check Valve Chain Switch, Window and Wall Mount Vent Fans for Kitchen Bathroom Greenhouse Garage (6 inch / 110V)
  • 【Precision Design】--The grille cover design of the exhaust fan allows the fan to blow the air evenly to the house and draw out bad air in all directions.
  • 【Easy to install】--This wall-mounted vent fan can be installed on a window or wall and is easy to install. It is an advanced window exhaust fan and wall exhaust fan with powerful motor and high...
  • 【Durable motor】--The ventilation fan adopts permanent lubrication and wear-resistant sleeve bearing motor, high-quality anti-rust copper material, built-in overheat protection device, and has the...
  • 【high performance】--320m³/h large airflow, 18W low energy consumption, noise lower than 35 dB. Also designed with back damper check valve which allows it open and close automatically with the...
Exhaust Fan 188 CFM, 18W 320m³/h Ventilation Extractor with Anti-backflow Check Valve Chain Switch, Window and Wall Mount Vent Fans for Kitchen Bathroom Greenhouse Garage (6 inch / 110V)
  • 【Precision Design】--The grille cover design of the exhaust fan allows the fan to blow the air evenly to the house and draw out bad air in all directions.
  • 【Easy to install】--This wall-mounted vent fan can be installed on a window or wall and is easy to install. It is an advanced window exhaust fan and wall exhaust fan with powerful motor and high...
  • 【Durable motor】--The ventilation fan adopts permanent lubrication and wear-resistant sleeve bearing motor, high-quality anti-rust copper material, built-in overheat protection device, and has the...
  • 【high performance】--320m³/h large airflow, 18W low energy consumption, noise lower than 35 dB. Also designed with back damper check valve which allows it open and close automatically with the...
Exhaust Fan , 18W Ventilation Extractor with Anti-backflow Check Valve Chain Switch, Window and Wall Mount Vent Fans for Kitchen Bathroom Greenhouse Garage (6 inch / 110V) Thin fan
  • 【Ventilation fan with Check Valve and slim design 】 This 6” air duct vent has check valve. You can keep air reversible or exhausting cooking odors by your request. When the airflow stops, it can...
  • 【Wall exhausted fan with filter】 When installed on glass, window or wall, it can be used to prevent dust, leaves, with ABS panel filter, providing you a clean air circulation environment.
  • 【Easy to install】--This wall-mounted vent fan can be installed on a window or wall and is easy to install. It is an advanced window exhaust fan and wall exhaust fan with powerful motor and high...
  • 【high performance】--18W low energy consumption, noise lower than 35 dB. Also designed with back damper check valve which allows it open and close automatically with the fan.

3. Best for Large Bathrooms: Sailflo 10 Inch Exhaust Shutter Fan

The Sailflo 10 inch Exhaust Shutter Fan is the best option for larger bathrooms. The dimensions of this fan (13.75” by 13.75” by 6.7”) are appropriate for larger windows.

This fan has 470 CFM. As this is an adequate level for many public spaces, you can imagine that it will be more than sufficient for most bathrooms that are of a larger-than-normal scale.

SAILFLO 10 Inch Exhaust Shutter Fan 2-Way Linkage Blower 470 CFM Strong Reversible Airflow Wall Mounted Ventilation Fan for Vents Attic Kitchen Bathroom Basement 10" Diameter Propeller

Pros

It boasts high versatility with reversible airflow, promoting air circulation in the bathroom which is recommended for the best air quality. The fan comes with a pull cord to allow for ease of operation.

Installation of this fan can be as simple as wedging it into the window, or a wood frame can be created for a better fit.

Cons

Some users mentioned that a wood frame is necessary as it is tricky to get this fan to stay in place without it.

This fan operates at a relatively high noise level of 2.3 sones.

The appearance of this fan is standard, and it’s made of white plastic. The price is slightly above other options due to this fan’s power and impressive features.

SAILFLO 10 Inch Exhaust Shutter Fan 2-Way Linkage Blower 470 CFM Strong Reversible Airflow Wall Mounted Ventilation Fan for Vents Attic Kitchen Bathroom Basement 10" Diameter Propeller
  • ★Large Airflow -- Exhaust 800m³/h(470 CFM), air intake 680m³/h, fast speed and the thick vanes make it more stable.
  • ★Can Exhaust In Reverse -- It is a 2-way linkage type ventilation fan.In addition to exhausting smoke, it can eliminate sweltering hot air masses, and inhale cool nature wind to achieve ventilation.
  • ★Durable Motor -- High-quality wear-resistant sleeve bearing motor, which can continually work for 9,000 hours, quiet and stable.
  • ★Overheat Protection Easy Operation - with overheat protector, efficient temperature fuse, safer to useThe first pull, the fan runs and exhausts outward. The second pull, the fan reversely runs, and...

4. Best for Versatility: Comfort Zone 3-Speed 3-Function Expandible Twin Window Fan

The Comfort Zone CZ310R wins for versatility due to its variety of speeds and functions.

The appearance of this fan is white plastic with grey controls. Its twin fans create a symmetrical look in the window and promote higher airflow and versatility.

Comfort Zone CZ310R 3-Speed 3-Function Expandable Reversible Twin Window Fan with Remote Control, Removable Cover

Pros

This fan is installed easily and fits into a variety of window sizes due to its accordion expanders, which adjust to fit windows anywhere between 23.5” and 37” wide. The fan is also 12.9″ tall and has a depth of about 4.75”.

This fan is highly versatile with 3 speeds (low, medium, high) and 3 functions (cooling, exhaust, and circulating), making it ideal for a range of bathrooms of different sizes.

The fan can also be operated from a distance with a remote and comes with a removable cover for when it is not in use.

Cons

The unit is fairly large and therefore needs to be installed into a larger window.

At 2.6 sones, the noise rating on this model is higher than any of the others that we have previously discussed.

Furthermore, the fan beeps when its buttons are pushed, which can be inconvenient for nighttime use.

Sale
Comfort Zone CZ310R 3-Speed 3-Function Expandable Reversible Twin Window Fan with Remote Control, Removable Cover
  • 3-SPEED FUNCTIONALITY: Choose between low-, medium- or high-volume air speed options on this twin window fan in order to optimize air circulation and airflow to suit any environment.
  • MULTI-FUNCTION OPTIONS: Select the cooling function to refresh a room, the exhaust function to remove stale air or the circulating function to move the blades on each fan in opposing directions.
  • ADJUSTABLE WIDTH: Accordion expanders adjust from 23-1/2" to 37" to accommodate most window sizes, then can be locked to secure the twin window fan in place.
  • CONVENIENT CONTROL: The included remote control allows you to conveniently change speed settings, choose fan functions and power on the fan from a distance.

5. Best for Low Noise Production: Hugoome 6-inch Small Square Exhaust Fan with Rope

The Hugoome 6-inch small square exhaust fan with rope on/off switch, which was previously mentioned for use in small spaces, is also one of the quietest options available.

This small fan is powerful enough for use in a large bathroom with its 188 CFM capacity, but it remains quieter than many other options, producing just 1.4 sones.

This fan is affordable and discrete, and it has very high value for the money due to its impressive stats.

Exhaust Fan 188 CFM, 18W 320m³/h Ventilation Extractor with Anti-backflow Check Valve Chain Switch, Window and Wall Mount Vent Fans for Kitchen Bathroom Greenhouse Garage (6 inch / 110V)

6. Best Looking: Vornado TRANSOM Window Fan

The undisputed winner for the best-looking exhaust fan is the Vornado TRANSOM window fan. This fan is designed sleeker than its competitors and comes with the choice between crisp white and elegant black.

The fan is only 7.2” tall and 5.7” deep, making it a slim and discrete choice. It is easy to install in windows between 26” and 40” and it uses a foam block system to ensure a snug fit.  

Vornado TRANSOM Window Fan with 4 Speeds, Remote Control, Reversible Exhaust Mode, Weather Resistant Case, Whole Room, Black

Pros

This fan provides a good range of power ratings, making it versatile for many bathroom sizes. It ranges from 88 CFM on the low speed to 185 CFM on the high speed.

This fan has very lower noise production on the low-speed setting, producing only 1.2 sones.

The multiple speed setting options on this fan make it a versatile option. It also has reversible airflow, controlled by a convenient remote.

Additionally, the fan has a thermostat setting allowing it to turn on automatically to cool off a hot room.

This fan also comes with a 5-year price back guarantee. While it is pricier than competitors, it has high value due to its convenience, appearance, versatility, and warranty.

Cons

On the high-speed setting, it produces a very noisy 3.5 sones.

Vornado TRANSOM Window Fan with 4 Speeds, Remote Control, Reversible Exhaust Mode, Weather Resistant Case, Whole Room, Black
  • POWERFUL AIRFLOW — Transom uses powerful airflow to draw fresh air in from outside or exhaust stale air out of the room.
  • ELECTRONICALLY REVERSIBLE — With one button, quickly transition the airflow from fan to exhaust. Transom also automatically rotates into a closed position when the unit is powered off.
  • SIMPLE INSTALLATION — Seals off windows 26” to 40” wide with the patented Soft-fit foam block system that provides a snug fit without having to remove your screen.
  • CUSTOMIZABLE COMFORT — Choose from 4 speed settings with auto temperature control to maintain a set temperature. A remote control provides additional convenience.

7. Best for Easy Installation: Bionaire Window Fan with 8.5 Inch Twin Blades

The best fan for ease of installation is the Bionaire window fan with twin 8.5″ blades due to its accordion-style extenders that allow it to fit into any window without needing to assemble anything or create a frame.

Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades and Remote Control, White

Pros

This fan has the ability to extend from 24″ to 37″ and is 13″ tall. Installation is very easy as it should fit into the bottom of the window and its extenders allow a reliable snug fit. It is also designed for both horizontal and vertical use.

This fan can be operated by hand with the screen controls or its convenient remote control or automatically using its temperature regulation. You can set the thermostat to any temperature and the fan will turn on to maintain this temperature.

It also has reversible airflow and 3-speed settings.

Cons

Unfortunately, this fan does not come with information regarding its CFM or noise level.

This is another more expensive option, but it does come with a 5-year warranty.

Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades and Remote Control, White & Holmes Dual 8" Blade Twin Window Fan with Manual Controls, 3 Speed Settings, White
  • 1 of Bionaire Window Fan with Twin 8.5-Inch Reversible Airflow Blades and Remote Control, White
  • 1 of HOLMES Dual 8" Blade Twin Window Fan with Manual Controls, 3 Speed Settings, White

Sources

https://www.vornado.com/shop/circulators-fans/window/transom-window-air-circulator

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